Riders seat stud that the Post rider seat screws onto is broke off flush. The post is what the riders seat closes on. What is the easiest way to get the stud out so I can install a new one? Waiting for a dealer to give me the part number for the stud and post. most of the stud is inside the aluminium post. It appears easier to replace the rider post than try to get the piece of stud out. The post aluminium is so soft that the threads inside will strip out will taking the stud out.

No I was not using a torque wrench, and had done this once before. Just used a little to much umph on the crescent wrench

Use a left handed drill bit anout 1/3 the size of the stud. This could back the stud out and it's very easy. If the threads are damaged and it doesn't want to back out on it's own using the left handed bit then use the EZout. Inspect the female threads that the stud threads into for damage and chase the threads with a tap if needed. It's not that hard to do at all.

Folks thanks. especially Joe for the suggestion to put a piece of metal in place to block possible fuel tank damage, when I drill a hole to push a bolt up from the bottom and screw a new post back on it. Adventure HD in Ohio was great on getting the part number for the Seat post aluminum stud, and finding the right size bolt to thread up in it. Here in Korea it is hard to go out and find that type of hardware. Will add a lock washer and blue loctite. The stud is only 4.45. So not worth attempting an ez out which often does not work. BTW the official HD solution would be to replace the seat pan ($215) as the stud that the seat post screws on is welded in place. PS Swiffer I will try to reverse my drill with a smaller bit and get the stud out of the post. If that works will have an extra post.